To solve the expression \( \frac{1}{3} + \frac{2}{5} \):

1. Find a common denominator. The denominators are 3 and 5. The least common denominator (LCD) is 15.

2. Convert each fraction to have the LCD as the denominator:
   \[
   \frac{1}{3} = \frac{1 \times 5}{3 \times 5} = \frac{5}{15}
   \]
   \[
   \frac{2}{5} = \frac{2 \times 3}{5 \times 3} = \frac{6}{15}
   \]

3. Add the fractions:
   \[
   \frac{5}{15} + \frac{6}{15} = \frac{5 + 6}{15} = \frac{11}{15}
   \]

So, \( \frac{1}{3} + \frac{2}{5} = \frac{11}{15} \).

Would you like further details or have any questions? Here are some related questions:

1. How do you find the least common denominator of two fractions?
2. What is the process for subtracting fractions?
3. How do you simplify fractions after addition?
4. What are equivalent fractions and how are they used?
5. How do you convert improper fractions to mixed numbers?

**Tip:** Always find the least common denominator when adding or subtracting fractions to simplify the process.

Learn how to add fractions 1/3 and 2/5 with a detailed step-by-step guide. Find the common denominator, convert each fraction, and add them together to get the result. Suitable for Grades 4-6.

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